dm log: move register functions
Reorder a couple of functions in the file so the next patch is readable. Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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416cd17b19
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1 changed files with 26 additions and 26 deletions
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@ -19,32 +19,6 @@
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static LIST_HEAD(_log_types);
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static LIST_HEAD(_log_types);
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static DEFINE_SPINLOCK(_lock);
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static DEFINE_SPINLOCK(_lock);
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int dm_dirty_log_type_register(struct dm_dirty_log_type *type)
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{
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spin_lock(&_lock);
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type->use_count = 0;
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list_add(&type->list, &_log_types);
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spin_unlock(&_lock);
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return 0;
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}
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EXPORT_SYMBOL(dm_dirty_log_type_register);
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int dm_dirty_log_type_unregister(struct dm_dirty_log_type *type)
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{
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spin_lock(&_lock);
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if (type->use_count)
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DMWARN("Attempt to unregister a log type that is still in use");
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else
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list_del(&type->list);
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spin_unlock(&_lock);
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return 0;
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}
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EXPORT_SYMBOL(dm_dirty_log_type_unregister);
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static struct dm_dirty_log_type *_get_type(const char *type_name)
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static struct dm_dirty_log_type *_get_type(const char *type_name)
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{
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{
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struct dm_dirty_log_type *type;
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struct dm_dirty_log_type *type;
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@ -122,6 +96,32 @@ static void put_type(struct dm_dirty_log_type *type)
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spin_unlock(&_lock);
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spin_unlock(&_lock);
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}
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}
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int dm_dirty_log_type_register(struct dm_dirty_log_type *type)
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{
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spin_lock(&_lock);
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type->use_count = 0;
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list_add(&type->list, &_log_types);
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spin_unlock(&_lock);
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return 0;
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}
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EXPORT_SYMBOL(dm_dirty_log_type_register);
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int dm_dirty_log_type_unregister(struct dm_dirty_log_type *type)
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{
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spin_lock(&_lock);
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if (type->use_count)
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DMWARN("Attempt to unregister a log type that is still in use");
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else
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list_del(&type->list);
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spin_unlock(&_lock);
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return 0;
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}
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EXPORT_SYMBOL(dm_dirty_log_type_unregister);
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struct dm_dirty_log *dm_dirty_log_create(const char *type_name,
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struct dm_dirty_log *dm_dirty_log_create(const char *type_name,
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struct dm_target *ti,
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struct dm_target *ti,
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unsigned int argc, char **argv)
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unsigned int argc, char **argv)
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